flywheel ring gear location

[Thomas Sargent]

I have just finished replacing my clutch disc and PP, converting to a diaphram type from Centerforce. To get the correct bolt pattern for the PP i found a flywheel that seemed to be identical to the one I had. However i did not check every dimension vs the old flywheel. Now installed, I find ring gear measures 1.5 inch from the starter mounting surface on the pan, and 1 13/16" to the far side of the ring gear from the mounting surface. my replacement starter has a newer style bendix and measures 1.5" when relaxed from the pinion to the starter mounting surface. Installing an older style bendix I now find I have 1 13/16" when relaxed. Will I be ok or is the fit too close? any input will be appreciated. I considered installing a brass washer on the starter shaft close to the housing to compress the bendix spring slightly to increase clearance. My engine is a 1940 flathead v8 as best I can confirm. I have not been able to find any spec sheets for flywheels nor do I think I had the origional flywheel. THanks